OK, let's crack this. We're given 190 and our task is to multiply it by 86. Essentially, we'll be adding 190 to itself 86 times.
Step 1: 0 + 190 = 190
Step 2: 190 + 190 = 380
Step 3: 380 + 190 = 570
Step 4: 570 + 190 = 760
Step 5: 760 + 190 = 950
Step 6: 950 + 190 = 1140
Step 7: 1140 + 190 = 1330
Step 8: 1330 + 190 = 1520
Step 9: 1520 + 190 = 1710
Step 10: 1710 + 190 = 1900
Step 11: 1900 + 190 = 2090
Step 12: 2090 + 190 = 2280
Step 13: 2280 + 190 = 2470
Step 14: 2470 + 190 = 2660
Step 15: 2660 + 190 = 2850
Step 16: 2850 + 190 = 3040
Step 17: 3040 + 190 = 3230
Step 18: 3230 + 190 = 3420
Step 19: 3420 + 190 = 3610
Step 20: 3610 + 190 = 3800
Step 21: 3800 + 190 = 3990
Step 22: 3990 + 190 = 4180
Step 23: 4180 + 190 = 4370
Step 24: 4370 + 190 = 4560
Step 25: 4560 + 190 = 4750
Step 26: 4750 + 190 = 4940
Step 27: 4940 + 190 = 5130
Step 28: 5130 + 190 = 5320
Step 29: 5320 + 190 = 5510
Step 30: 5510 + 190 = 5700
Step 31: 5700 + 190 = 5890
Step 32: 5890 + 190 = 6080
Step 33: 6080 + 190 = 6270
Step 34: 6270 + 190 = 6460
Step 35: 6460 + 190 = 6650
Step 36: 6650 + 190 = 6840
Step 37: 6840 + 190 = 7030
Step 38: 7030 + 190 = 7220
Step 39: 7220 + 190 = 7410
Step 40: 7410 + 190 = 7600
Step 41: 7600 + 190 = 7790
Step 42: 7790 + 190 = 7980
Step 43: 7980 + 190 = 8170
Step 44: 8170 + 190 = 8360
Step 45: 8360 + 190 = 8550
Step 46: 8550 + 190 = 8740
Step 47: 8740 + 190 = 8930
Step 48: 8930 + 190 = 9120
Step 49: 9120 + 190 = 9310
Step 50: 9310 + 190 = 9500
Step 51: 9500 + 190 = 9690
Step 52: 9690 + 190 = 9880
Step 53: 9880 + 190 = 10070
Step 54: 10070 + 190 = 10260
Step 55: 10260 + 190 = 10450
Step 56: 10450 + 190 = 10640
Step 57: 10640 + 190 = 10830
Step 58: 10830 + 190 = 11020
Step 59: 11020 + 190 = 11210
Step 60: 11210 + 190 = 11400
Step 61: 11400 + 190 = 11590
Step 62: 11590 + 190 = 11780
Step 63: 11780 + 190 = 11970
Step 64: 11970 + 190 = 12160
Step 65: 12160 + 190 = 12350
Step 66: 12350 + 190 = 12540
Step 67: 12540 + 190 = 12730
Step 68: 12730 + 190 = 12920
Step 69: 12920 + 190 = 13110
Step 70: 13110 + 190 = 13300
Step 71: 13300 + 190 = 13490
Step 72: 13490 + 190 = 13680
Step 73: 13680 + 190 = 13870
Step 74: 13870 + 190 = 14060
Step 75: 14060 + 190 = 14250
Step 76: 14250 + 190 = 14440
Step 77: 14440 + 190 = 14630
Step 78: 14630 + 190 = 14820
Step 79: 14820 + 190 = 15010
Step 80: 15010 + 190 = 15200
Step 81: 15200 + 190 = 15390
Step 82: 15390 + 190 = 15580
Step 83: 15580 + 190 = 15770
Step 84: 15770 + 190 = 15960
Step 85: 15960 + 190 = 16150
Step 86: 16150 + 190 = 16340

So, 190*86 = 16340